The part about hammering the copper wire isn't very well explained. How do you do that part of it??? The picture shows a great deal of wire protruding from both ends. If you lay it flat on an anvil, the other side will have even more wire protruding, and will simply bend when attempting to hammer it. This seems the most tricky part of the entire operation, especially for those of us who've never hammered any metal into shape before. How exactly is this part accomplished?